So from what I can make out.
So for the Blue
All of the singletrack climb from the trailhead is shut.
You would climb on fireroad until the bottom of Super G and then rejoin the blue route. So you would be able to ride Betty Blue, Blue Velvet and Berm Baby Berm. Then diverted down another fireroad back to the trailhead.
For the Red the same applies but you would ride up to Spooky Wood and start the descent from there. Spooky Wood, Super G, Hit Squad Hill followed by Pie Run, Magic Mushroom or The Matrix, Lombard Street, Magic Mushroom if you prefer. From the end of Magic Mushroom its back down a fireroad diversion to the trail head.
So if I was going I’d ride the Red. The Blue is reduced to 3 sections of singletrack